DR Elmore, I'm sorry you haven't found the can opener. I hate when that happens, and I know whereof I speak.
It sounds silly, but when I've had a kitchen utensil or other such item for years (assuming it's something that's always worked for me as opposed to being a pain in the ASS), I grow attached to it and absolutely hate it when it goes missing. I actually take some pride in kitchen items I got for my apartments in the '70s and '80s. And yes, a few such things were given to me by my parents back then. So, it's a sentimental thing, but also a quality thing when it's something you picked out as being best for you at the time.....and still is.